Aerobic system aeration pipeline pickling descaling device

Abstract

The utility model discloses a pickling and descaling device for an aeration pipeline of an aerobic system, and belongs to the technical field of sewage treatment. The pickling descaling device for the aeration pipeline of the aerobic system comprises the aeration pipeline at the bottom of an aerobic tank, the aeration pipeline is externally connected with a pickling storage tank through an acid adding pipeline, a dosing pump is connected to the acid adding pipeline, jet ejectors are uniformly distributed on the pipe wall of the aeration pipeline, each jet ejector is internally communicated with an atomizing nozzle, and the atomizing nozzles are communicated with the aeration pipeline. The atomizing nozzle is externally connected with an acid adding pipeline, the jet flow ejector is used for aeration, so that the aeration effect is improved, scaling points are dispersed in the aeration pipeline and the jet flow ejector, acid pickling liquid medicine is uniformly sprayed out through the atomizing nozzle, synchronous acid pickling descaling of the aeration pipeline and the jet flow ejector is realized, and the liquid medicine directly enters the aerobic tank for treatment after acid pickling; and the purpose of descaling the aeration pipeline after emptying the aeration aerobic tank is achieved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically to an acid washing and descaling device for aerobic system aeration pipelines. Background Technology

[0002] The aerobic wastewater treatment system employs the activated sludge process. Wastewater is continuously fed into the reaction tank and undergoes four stages: influent, reaction, sedimentation, and decanting. During this process, microorganisms adsorb and metabolize organic and inorganic matter, degrading organic pollutants in the wastewater, thereby achieving the goal of purifying the wastewater.

[0003] During this process, high concentrations of calcium ions in the incoming water will form scale in the aeration pipes of the aerobic tank, reducing the pipe pore size, increasing aeration resistance, resulting in low dissolved oxygen efficiency and poor sludge settling performance. Therefore, regular cleaning and descaling of the aeration pipes are necessary. Current descaling methods involve emptying the aeration tank, having personnel enter to dismantle, grind, and flush the aeration pipes, and then reinstalling them. This process consumes a significant amount of time, manpower, and resources, and the cleaning effect is poor, affecting wastewater treatment efficiency and operational stability. Utility Model Content

[0004] 1. Technical problem to be solved by the utility model

[0005] In view of the above-mentioned defects in the existing solid material collection devices, this utility model provides an acid washing and descaling device for aerobic system aeration pipelines. By combining a jet injector and an atomizing nozzle, the scale points are dispersed, and the scale is removed by the atomizing nozzle, so as to achieve the purpose of descaling the aeration pipeline without emptying the aeration tank.

[0006] 2. Technical Solution

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] An acid washing and descaling device for aerobic system aeration pipeline includes an aeration pipeline at the bottom of the aerobic tank. The aeration pipeline is connected to an acid washing storage tank via an acid addition pipeline. A dosing pump is connected to the acid addition pipeline. Jet injectors are evenly distributed on the pipe wall of the aeration pipeline. Each jet injector is connected to an atomizing nozzle. The atomizing nozzle is connected to the acid addition pipeline. Aeration through the jet injectors disperses the scale points on the aeration pipeline and the jet injectors. Then, the acid washing solution is evenly sprayed through the atomizing nozzles to achieve simultaneous acid washing and descaling of the aeration pipeline and the jet injectors. After acid washing, the solution directly enters the aerobic tank for treatment, achieving the technical effect of not needing to empty the aerobic tank before descaling the aeration pipeline.

[0009] A further technical solution involves supplying liquid to the atomizing nozzle through an acid-adding branch pipe via an acid-adding pipeline, thereby achieving uniform acid washing and descaling of the scale-forming points.

[0010] A further technical solution is to match each acid-adding branch pipe with an atomizing nozzle in a ratio of 1:(4-8) to ensure the atomizing spray pressure of each atomizing nozzle.

[0011] 3. Beneficial effects

[0012] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0013] This utility model relates to an acid washing and descaling device for aerobic system aeration pipelines. It achieves descaling under normal system operation without requiring the aeration tank to be emptied or personnel to enter for cleaning. The device has few components and a simple structure. The acid washing solution is evenly sprayed through atomizing nozzles, resulting in significant descaling effect and high efficiency. It effectively prevents scaling and clogging of aeration pipelines and nozzles. The acid washing solution can be directly discharged into the aerobic tank for convenient treatment without affecting wastewater treatment efficiency or operational stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the acid washing and descaling device for the aeration pipeline of an aerobic system in a specific embodiment.

[0015] Figure 2 This is a top view structural diagram of the aerobic tank in a specific embodiment.

[0016] In the diagram: 1-Acid pickling tank; 2-Dosing pump; 3-Aeration pipeline; 4-Acid addition pipeline; 5-Atomizing nozzle; 6-Jet injector; 7-Aerobic tank; 11-Acid pickling tank outlet valve; 21-Dosing pump inlet valve; 22-Dosing pump outlet valve; 41-Acid addition branch pipe A; 42-Acid addition branch pipe B; 43-Acid addition branch pipe C. Detailed Implementation

[0017] To further understand the contents of this utility model, a detailed description of the utility model is provided in conjunction with the accompanying drawings.

[0018] Example 1

[0019] The aerobic system aeration pipeline acid washing and descaling device in this embodiment, such as Figure 1 As shown, the aeration pipeline 3 at the bottom of the aerobic tank 7 is connected to the acid washing storage tank 1 via an acid addition pipeline 4. A dosing pump 2 is connected to the acid addition pipeline 4. Jet injectors 6 are evenly distributed on the wall of the aeration pipeline 3, and each jet injector 6 is connected to an atomizing nozzle 5, which is connected to the acid addition pipeline 4. An acid washing storage tank outlet valve 11 is provided at the outlet of the acid washing storage tank 1, and a dosing pump inlet valve 21 and a dosing pump outlet valve 22 are provided at the inlet and outlet of the dosing pump 2, respectively.

[0020] The aerobic system aeration pipeline acid washing and descaling device in this embodiment improves the aeration effect by using jet injector 6 for aeration, while also dispersing the scale points on the aeration pipeline 3 and jet injector 6. Then, the acid washing solution is evenly sprayed through atomizing nozzle 5 to achieve simultaneous acid washing and descaling of the aeration pipeline 3 and jet injector 6. After acid washing, the solution directly enters the aerobic tank 7 for treatment, achieving the technical effect of not needing to empty the aerobic tank 7 before descaling the aeration pipeline 3.

[0021] Example 2

[0022] The aerobic system aeration pipeline acid washing and descaling device in this embodiment has the same basic structure as in embodiment 1, with the difference or improvement being that: the acid adding pipeline 4 supplies liquid to the atomizing nozzle 5 through an acid adding branch pipe, such as... Figure 2 As shown, the acid-adding branch pipes are A41, B42, and C43, respectively, to achieve uniform acid washing and descaling of each scale point. Each acid-adding branch pipe is matched with the atomizing nozzle 5 in a ratio of 1:(4-8), as follows: Figure 2 As shown, the ratio is preferably 1:6 to ensure the atomization spray pressure of each atomizing nozzle 5, and a switch valve is provided on each acid addition branch pipe.

[0023] In this embodiment, the aerobic system aeration pipeline acid washing and descaling device addresses the issue that excessively high calcium ion concentration in the incoming water of aeration pipeline 3 can cause scaling on aeration pipeline 3 and jet injector 6, affecting the stable operation of the system. Therefore, aeration pipeline 3 and jet injector 6 should be regularly acid washed and descaled. During acid washing, the acid washing solution should be prepared first. After preparation, the outlet valve 11 of the acid washing storage tank 1, the inlet valve 21 of the dosing pump, and the outlet valve 22 of the dosing pump should be opened. The dosing pump 2 should then be started. The acid washing solution enters the acid adding branch pipes A41, B42, and C43 through the acid adding pipe 4, and is evenly sprayed out through the atomizing nozzles 5 at the air-water junction of the jet injector 6 inside the aeration pipeline 3, thus cleaning the aeration system. The acid washing process takes approximately one hour. When acid washing stops, first stop the dosing pump 2, then close the acid washing tank outlet valve 11, the dosing pump inlet valve 21, and the dosing pump outlet valve 22. The acid washing waste liquid directly enters the aerobic tank 7. Descaling can be achieved under normal system operation without the need to empty the aeration tank or require personnel to clean and descal. The descaling device in this embodiment has few additional components and a simple structure. The acid washing solution is evenly sprayed through the atomizing nozzle 5, resulting in a significant descaling effect and high acid washing efficiency. It effectively prevents scaling and clogging of the aeration pipeline 3, jet injector 6, and nozzle 5. The acid washing solution directly enters the aerobic tank 7, making treatment convenient and environmentally friendly, without affecting wastewater treatment efficiency or operational stability.

[0024] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention. The actual structure and manufacturing steps are not limited to these. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. An acid washing and descaling device for aerobic system aeration pipeline, comprising an aeration pipeline (3) at the bottom of an aerobic tank (7), characterized in that: The aeration pipeline (3) is connected to the acid washing tank (1) via the acid addition pipeline (4). The acid addition pipeline (4) is connected to the dosing pump (2). The aeration pipeline (3) is evenly distributed with jet injectors (6). Each jet injector (6) is connected to an atomizing nozzle (5). The atomizing nozzle (5) is connected to the acid addition pipeline (4).

2. The aerobic system aeration pipeline acid washing and descaling device according to claim 1, characterized in that: The acid supply pipe (4) supplies liquid to the atomizing nozzle (5) through the acid supply branch pipe.

3. The aerobic system aeration pipeline acid washing and descaling device according to claim 2, characterized in that: Each acid-adding branch pipe is matched with an atomizing nozzle (5) in a ratio of 1:(4-8).

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